/Engine/Plugins/Runtime/Synthesis/Source/Synthesis/Classes/SynthComponents/EpicSynth1Component.h
Sets whether or not the synth is in unison mode (i.e. no spread)
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Synth|Components|Audio") void SetEnableUnison ( bool EnableUnison )